Updated: 2025-12-14 03:16:17.303
Description:
The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | NONE | 0.0 |
| CVSS Version 3.x | HIGH | 7.5 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | bind-dyndb-ldap | 11.9 | 7.5 | HIGH | Not Vulnerable | 2025-12-05 21:57:01 | Not affected — CVE-2023-4408 targets BIND 9’s named DNS message parser, not the bind-dyndb-ldap ... | |
| AlmaLinux 9.2 ESU | bind | 9.16.23 | 7.5 | HIGH | Released | CLSA-2025:1739961948 | 2025-02-20 06:46:24 | Not affected — CVE-2023-4408 targets BIND 9’s named DNS message parser, not the bind-dyndb-ldap ... |
| AlmaLinux 9.2 ESU | dhcp | 4.4.2 | 7.5 | HIGH | Released | CLSA-2025:1741126840 | 2025-03-05 21:56:54 | Not affected — CVE-2023-4408 targets BIND 9’s named DNS message parser, not the bind-dyndb-ldap ... |
| CentOS 6 ELS | bind | 9.8.2 | 7.5 | HIGH | Not Vulnerable | 2024-05-15 10:25:44 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive | |
| CentOS 6 ELS | dhcp | 4.1.1 | 7.5 | HIGH | Not Vulnerable | 2024-10-02 14:25:59 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive | |
| CentOS 7 ELS | bind | 9.11.4 | 7.5 | HIGH | Released | CLSA-2024:1720777628 | 2024-07-25 17:33:16 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive |
| CentOS 7 ELS | dhcp | 4.2.5 | 7.5 | HIGH | Not Vulnerable | 2024-10-07 10:48:27 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive | |
| CentOS 8.4 ELS | bind | 9.11.26 | 7.5 | HIGH | Released | CLSA-2024:1717086870 | 2024-05-30 14:22:29 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive |
| CentOS 8.4 ELS | dhcp | 4.3.6-44 | 7.5 | HIGH | Not Vulnerable | 2024-10-02 14:26:02 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive | |
| CentOS 8.5 ELS | dhcp | 4.3.6-45 | 7.5 | HIGH | Not Vulnerable | 2024-10-02 14:26:02 | We have reasoned not to port the patches for this CVE since the changes introduced are too intrusive |